*{
	margin: 0;
	padding: 0;
}

body{
	/* background-size: 1280px 1280px; */
	background: url(../images/mainbackp.png) no-repeat center top;
	/* background-image: linear-gradient(to right, deepskyblue, whitesmoke) */;
	background-color: white;
}
/*.hiddenmain{*/
/*	display: none;*/
/*}*/
#cover{
	display: none;
	width: 100%;
	height: 160%;
	position: absolute;
	left: 0;
	background-color: black;
	opacity: 0.8;
	z-index: 20;
}
#heng{
	background-color: lightgray;
	color: black;
	font-size: 16px;
	font-weight: 500;
	text-align: center;
	width: 100%;
	height: 30px;
	line-height: 30px;
}
.guanbi{
	cursor: pointer;
	margin-right: 5px;
	font-size: 25px;
	float: right;
}
.guanbi:hover{
	color: orange;
}
#rule{
	display: none;
	padding-left: 20px;
	padding-top: 10px;
	padding-right: 20px;
	padding-bottom: 20px;
	width: 500px;
	background-color: whitesmoke;
	position: absolute;
	left: 35%;
	top: 50px;
	z-index: 21;
}
#Developer{
	display: none;
	padding-left: 20px;
	padding-top: 10px;
	padding-right: 20px;
	padding-bottom: 20px;
	width: 500px;
	background-color: whitesmoke;
	position: absolute;
	left: 35%;
	top: 50px;
	z-index: 21;
}
#Developer>img{
	position: relative;
	left: 25%;
}
#mainBox{

}
#nav{
	border-radius: 30px;
	margin: 0 auto;
	width:960px;
	height: 100px;
	background-color: ghostwhite;
	opacity: 0.9;
}
.logo{
	display: inline-block;
	width: 350px;
}
.logo>img{

	border-radius: 30px;
	width: 350px;
	height: 100px;
}
.user{
	float: right;
	margin-right: 50px;
}
.welcome{
	line-height: 90px;
	font-size: 16px;
	color: gray;
}
.usertouxiang{
	margin-left: 20px;
	cursor: pointer;
}

#play{
	background-color: gainsboro;
	border: 2px solid dimgray;
	border-radius: 10px;
	cursor: pointer;
	margin: 0 auto;
	margin-top: 70px;
	width: 300px;
	/* height: 550px; */
	font-size: 20px;
	font-weight: 500;
	opacity: 0.9;
}
li{
	display: block;
	list-style: none;
}
.first{
	height: 100%;
	width: 100%;
}
.firstmenu{
	text-indent: 1em;
}
.firstmenu:hover{
	text-indent: 2em;
}
.first>li{
	transition: 0.5s;
	/* border: 1px solid black; */
	margin-bottom: 5px;
	line-height: 60px;
}

.second{
	display: none;
}
.second>li{
	text-align: center;
	text-indent: 0em;
	display: block;
	border-radius: 15px;
	background-color: lightskyblue;
	transition: 0.5s;
}
.second>li:hover{
	color: white;
	background-color: orange;
}
.gameRule{

}